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  <title>Deletes the global metadata of a zip archive</title>

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</div><hr /><div id="phardata.delmetadata" class="refentry">
 <div class="refnamediv">
  <h1 class="refname">PharData::delMetadata</h1>
  <p class="verinfo">(PHP &gt;= 5.3.0, PECL phar &gt;= 2.0.0)</p><p class="refpurpose"><span class="refname">PharData::delMetadata</span> &mdash; <span class="dc-title">Deletes the global metadata of a zip archive</span></p>

 </div>

 <div class="refsect1 description" id="refsect1-phardata.delmetadata-description">
  <h3 class="title">说明</h3>
  <div class="methodsynopsis dc-description">
   <span class="type">bool</span> <span class="methodname"><strong>PharData::delMetadata</strong></span>
    ( <span class="methodparam">void</span>
   )</div>

  <blockquote class="note"><p><strong class="note">Note</strong>: <p class="para">此方法需要
将 <var class="filename">php.ini</var> 中的 <em>phar.readonly</em> 设为
<em>0</em> 以适合 <a href="class.phar.html" class="classname">Phar</a>
对象.  否则, 将抛出<a href="class.pharexception.html" class="classname">PharException</a>.</p></p></blockquote>

  <p class="para">
   Deletes the global metadata of the zip archive
  </p>
 </div>


 <div class="refsect1 parameters" id="refsect1-phardata.delmetadata-parameters">
  <h3 class="title">参数</h3>
  <p class="para">
  </p>

 </div>

 <div class="refsect1 returnvalues" id="refsect1-phardata.delmetadata-returnvalues">
  <h3 class="title">返回值</h3>
  <p class="para">
   returns <strong><code>TRUE</code></strong> on success, but it is better to check for thrown exception,
   and assume success if none is thrown.
  </p>
 </div>


 <div class="refsect1 errors" id="refsect1-phardata.delmetadata-errors">
  <h3 class="title">错误／异常</h3>
  <p class="para">
   Throws <a href="class.pharexception.html" class="classname">PharException</a> if errors occur while flushing
   changes to disk.
  </p>
 </div>



 <div class="refsect1 examples" id="refsect1-phardata.delmetadata-examples">
  <h3 class="title">范例</h3>
  <p class="para">
   <div class="example" id="example-693">
    <p><strong>Example #1 A <span class="function"><strong>PharData::delMetaData()</strong></span> example</strong></p>
    <div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB">&lt;?php<br /></span><span style="color: #007700">try&nbsp;{<br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">$phar&nbsp;</span><span style="color: #007700">=&nbsp;new&nbsp;</span><span style="color: #0000BB">PharData</span><span style="color: #007700">(</span><span style="color: #DD0000">'myphar.zip'</span><span style="color: #007700">);<br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">$phar</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">getMetadata</span><span style="color: #007700">());<br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">$phar</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">setMetadata</span><span style="color: #007700">(</span><span style="color: #DD0000">"hi&nbsp;there"</span><span style="color: #007700">);<br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">$phar</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">getMetadata</span><span style="color: #007700">());<br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">$phar</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">delMetadata</span><span style="color: #007700">();<br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">$phar</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">getMetadata</span><span style="color: #007700">());<br />}&nbsp;catch&nbsp;(</span><span style="color: #0000BB">Exception&nbsp;$e</span><span style="color: #007700">)&nbsp;{<br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #FF8000">//&nbsp;handle&nbsp;errors<br /></span><span style="color: #007700">}<br /></span><span style="color: #0000BB">?&gt;</span>
</span>
</code></div>
    </div>

    <div class="example-contents"><p>以上例程会输出：</p></div>
    <div class="example-contents screen">
<div class="cdata"><pre>
NULL
string(8) &quot;hi there&quot;
NULL
</pre></div>
    </div>
   </div>
  </p>
 </div>


 <div class="refsect1 seealso" id="refsect1-phardata.delmetadata-seealso">
  <h3 class="title">参见</h3>
  <p class="para">
   <ul class="simplelist">
    <li class="member"><span class="function"><a href="phar.delmetadata.html" class="function" rel="rdfs-seeAlso">Phar::delMetadata()</a> - Deletes the global metadata of the phar</span></li>
   </ul>
  </p>
 </div>


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